Crystal Harris Spills Hugh Hefner Bedroom Secrets: Howard Stern Video

Crystal Harris is continuing to mess with Playboy founder Hugh Hefner, this time during a radio interview on Sirius XM's Howard Stern Show.

The runaway bride, who famously skipped out on her 85-year-old fiance just days before they were to wed at the Playboy mansion on June 18, is still turning the knife on her old beau.

When Howard Stern wanted to get to the nuts and bolts of their sex life, the 25-year-old blonde bombshell dished: "It lasted like, two seconds. Then it was over. I was like, 'Ahh.' I just, like, walked away. I'm not turned on by Hef. Sorry."

Harris told Stern that they only engaged in a sex act once: "He doesn't really take off his clothes. I've never seen Hef naked."

As it turns out, she was reportedly flinging with Dr. Phil's son Jordan McGraw for six months prior to exiting her fairytale prison in the days leading up to the planned nuptials. The Harris and McGraw affair is still going strong.

Hefner, who has already picked up a couple of new girlfriends, was philosophical about being dumped at the altar: "After all is said and done, staying single is probably the best. I think I just missed a bullet."